Tightness controls
The tightness control TC checks the fail-safe function of bothvalves before each start-up or after each shutdown of a systemwith two safety valves. The aim is to identify an inadmissibleleak on one of the gas valves and to prevent burner start. Theother gas valve continues working properly and takes over thesafe shut-off of the gas supply. It is used in industrialthermoprocessing equipment, on boilers and on forceddraught burners. Standards ISO 13577-2, EN 746-2 and EN 676stipulate tightness controls for capacities over 1200 kW (NFPA86: from 117 kW or 400,000 Btu/h in conjunction with a visualindicator).
FEATURES
- Adjustable test period which can beadapted to different systems
- Adjustable test instant allows quicksystem start
- Maximum safety thanks to self-monitoring electronics
- Certification: SIL 3, PL e, EAC, CE
